My experience so far with being out in weather with a slight head wind chop is that every wave sends spume over the gunnel and lands right in my field of view from the sitting helm position. This problem is made worse by malfunctioning wipers but it still needs to work overtime just to keep the window clear. I usually opt to stand out in the wind and rain so that I can see above the splash zone. Not a great solution.
My other complaint is the propensity for the canvas roof to condensate, leak and generally cause damp around the controls and gauges. An area I want to limit funk and corrosion. This has me thinking about hardtops and Nor'westing this craft a little more. I've been impressed by the ingenuity of folks' hardtop builds and extended cockpit roofs. I could see myself getting into that camp of owners...But then what about when I want to stand up? Sometimes you just want to stretch your legs, or you need to see the dock, or the crab buoy, or the swimmer, etc.
So has anybody done a more weather-proof wheelhouse roof that includes more headroom? I think it could be done! I don't want to sacrifice the 70s styling of my boat and truly this might be way more than I want to bite off and chew, but I'm curious about the group's thoughts **guarding against flying rotten tomatoes**

This sketch puts 2 meters of standing room between the engine cover to the pilothouse ceiling. Attaches directly to the combing that the factory structure is screwed to. Could be fabricated from aluminum or fiberglass over foam or plywood. Adds a total of 12" to overall height. Three front windows with nice rounded radius corners to keep the classic style, large side sliding windows to allow for ventilation and yelling at shipmates on the bow or dock. I would raise the bench seat to closer match standing height for better visibility. I still like the option for an open cockpit with a good canvas enclosure plus the ease of getting in and out.
I'm not sure where this is going but it's eating me up a little bit every time I'm on the boat so I needed to get it out to the forum. Have at it!